CHEM 103 Module 1 To 6 Exam & Final Exam Review Questions and
Answers 2026/27 Update - Portage learning
Module 1
Due No due date
Points
Questions 28
Time Limit None
Question 1
pts
What are the 3 domains of chemistry? Give a brief description of each.
Your Answer:
macroscopic, microscopic, and symbolic.
Macroscopic is anything that can be directly interacted with.
Microscopic is too small to be seen with the human eye.
Symbolic is a specialized language used to represent the macroscopic and microscopic domains.
macroscopic - large enough to be sensed directly by human sight or touch
microscopic - visited in the imagination (or visible through microscopes, etc)
CHEM 103 Module 1 To 6
, symbolic - specialized language used to represent components of the macroscopic and microscopic
domains
Question 2
pts
Classify the following as one of the 3 domains of chemistry:
1. H2O(l)
2. a lead pencil
3. a water bottle
4. a carbon atom
5. Cu(s)
6. an electron
Your Answer:
1. symbolic
2. macroscopic
3. macroscopic
4. microscopic
5. symbolic
6. microscopic
1. symbolic
2. macroscopic
3. macroscopic
4. microscopic
5. symbolic
6. microscopic
Question 3
pts
What are the 3 basic parts of a measurement?
Your Answer:
density, mass, volume
a number, a unit, and indication of uncertainty
CHEM 103 Module 1 To 6
, Question 4
pts
For the units listed below, write the correct symbol and the property measured.
1. second
2. meter
3. kelvin
4. kilogram
5. kg per cubic meter
6. mole
7. cubic meter
Your Answer:
1. s measures time
2. m measures distance
3. k measures temperature
4. kg measures mass
5. kg/m3 measures density
6. mol measures amount of a substance
7. m3 measures volume
1. s, time
2. m, length
3. K, temperature
4. kg, mass
5. kg/m3, density
6. mol, amount of substance
7. m3, volume
Question 5
pts
What is the mass of a lead cylinder that has a volume of 54.2 cm3 and a density of 11.34 g/cm3?
Equation:
CHEM 103 Module 1 To 6
, Equation with values substituted:
Answer (with correct units and to 3 significant figures):
Your Answer:
equation m= d x v
m= 11.34 g/cm3 x 54.2 cm3
work: 11.34 x 54.2 = 614.628. cm3 cancel out. leaving the unit as g.
round 614.628 to 3 significant figures= 615 g
m= 615 g
Question 6
pts
What is the difference between an exact number and an uncertain measurement?
Your Answer:
an exact number are not subject to rounding or measurements. example: 25 students in a class
an uncertain measurement is something that is subjective and utilizes a measuring device. example 12.3
is suggesting its between 12.2-12.4 and would not qualify as an exact measurement.
exact number - derived from counting
uncertain measurement - derived from a measurement other than counting and subject to uncertainty
due to limitations of the measurement process used
Question 7
pts
Classify the following as either an exact number or an uncertain measurement:
1. There are 4 quarts in 1 gallon.
2. The volume of the liquid is 12.3 mL.
3. There are 1000 g in 1 kg.
CHEM 103 Module 1 To 6
Answers 2026/27 Update - Portage learning
Module 1
Due No due date
Points
Questions 28
Time Limit None
Question 1
pts
What are the 3 domains of chemistry? Give a brief description of each.
Your Answer:
macroscopic, microscopic, and symbolic.
Macroscopic is anything that can be directly interacted with.
Microscopic is too small to be seen with the human eye.
Symbolic is a specialized language used to represent the macroscopic and microscopic domains.
macroscopic - large enough to be sensed directly by human sight or touch
microscopic - visited in the imagination (or visible through microscopes, etc)
CHEM 103 Module 1 To 6
, symbolic - specialized language used to represent components of the macroscopic and microscopic
domains
Question 2
pts
Classify the following as one of the 3 domains of chemistry:
1. H2O(l)
2. a lead pencil
3. a water bottle
4. a carbon atom
5. Cu(s)
6. an electron
Your Answer:
1. symbolic
2. macroscopic
3. macroscopic
4. microscopic
5. symbolic
6. microscopic
1. symbolic
2. macroscopic
3. macroscopic
4. microscopic
5. symbolic
6. microscopic
Question 3
pts
What are the 3 basic parts of a measurement?
Your Answer:
density, mass, volume
a number, a unit, and indication of uncertainty
CHEM 103 Module 1 To 6
, Question 4
pts
For the units listed below, write the correct symbol and the property measured.
1. second
2. meter
3. kelvin
4. kilogram
5. kg per cubic meter
6. mole
7. cubic meter
Your Answer:
1. s measures time
2. m measures distance
3. k measures temperature
4. kg measures mass
5. kg/m3 measures density
6. mol measures amount of a substance
7. m3 measures volume
1. s, time
2. m, length
3. K, temperature
4. kg, mass
5. kg/m3, density
6. mol, amount of substance
7. m3, volume
Question 5
pts
What is the mass of a lead cylinder that has a volume of 54.2 cm3 and a density of 11.34 g/cm3?
Equation:
CHEM 103 Module 1 To 6
, Equation with values substituted:
Answer (with correct units and to 3 significant figures):
Your Answer:
equation m= d x v
m= 11.34 g/cm3 x 54.2 cm3
work: 11.34 x 54.2 = 614.628. cm3 cancel out. leaving the unit as g.
round 614.628 to 3 significant figures= 615 g
m= 615 g
Question 6
pts
What is the difference between an exact number and an uncertain measurement?
Your Answer:
an exact number are not subject to rounding or measurements. example: 25 students in a class
an uncertain measurement is something that is subjective and utilizes a measuring device. example 12.3
is suggesting its between 12.2-12.4 and would not qualify as an exact measurement.
exact number - derived from counting
uncertain measurement - derived from a measurement other than counting and subject to uncertainty
due to limitations of the measurement process used
Question 7
pts
Classify the following as either an exact number or an uncertain measurement:
1. There are 4 quarts in 1 gallon.
2. The volume of the liquid is 12.3 mL.
3. There are 1000 g in 1 kg.
CHEM 103 Module 1 To 6
